Fig. 1From: Surgical outcome of non-functioning pituitary adenomas: a comparative study between microscopic and endoscopic techniquesA coronal contrasted T1-weighted MR image for a pre-operative tumor with a volume 5.92 cc, Knosp grade 1 (left) that was reduced to 0.76 cc (right) after microscopic resection (88% volume reduction)Back to article page